This is a shortened version of Robot Whistle. I has a higher pitch, and the Reading Hackspace URL on the back. I created it to reduce print time when demoing 3D Printing at a recent Ant-Sized Robot Wars Event.

I printed vertically on his head as the original suggested. It can be scaled using slicing software such as Slic3r. I print on a TVRR Mendel-Prusa derivative.